Moisture Resistance
Products & Systems that offer Moisture Resistance.
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What is the difference between the Promat SUPALUX® and Promat MASTERBOARD®?
Promat SUPALUX® and Promat MASTERBOARD® are high-performance Calcium Silicate derived building boards formulated without inorganic fibres and do not contain formaldehyde. Promat SUPALUX® is A1 non-combustible (EN13501-1), has a higher fire performance and is suitable for use in a wide range of internal and semi-exposed applications. Promat SUPALUX®
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Can SUPALUX® be installed in a permanently semi-exposed environment?
SUPALUX® can be installed in permanently semi-exposed environments providing the boards are not subject to wind-driven rain. When installed in a soffit applications it is expected to have a sufficient drip-edge detail or downstand included to ensure no-wind driven rain tracks along the underside of the ceiling construction. When installing SUPALUX
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What solutions can Promat offer for Swimming Pools?
Promat do not offer a solution to form swimming pool ceilings and wall linings because we no longer manufacture a rebated edge board which was a requirement for this system.
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Can I use Promat Moisture Resistant Ready-Mixed Joint Filler® in a semi-exposed environment?
Promat Moisture Resistant Ready-Mixed Joint Filler® is suitable for both interior applications, and is also specially formulated for use in semi exposed and high-humidity environments as a joint and screw filler for Promat MASTERBOARD® or SUPALUX® for lining the underside of a carport, undercroft, etc. When used in a semi exposed location, a final
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Do you have any specific jointing tape that works with Promat Moisture Resistant Ready-Mixed Joint Filler?
We would recommend using a self-adhesive glass or hessian scrim for board joints and internal angles. Paper jointing tape is not recommended.
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Do you have a 60 minutes solution for Supalux® board under timber joists within unheated plant room areas?
Yes we have two 60 minute timber joist new ceiling lining systems:- Fig 4.10.5 below uses 9mm SUPALUX ® board with 80mm wide cover strips, the minimum joist size must be 130mm x 38mm at maximum 610 c/c, with minimum 19mm T&G flooring above. Fig 4.10.6 below uses 12mm thick SUPALUX ® board, the minimum joists size must be 150mm x 50mm at maximu
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Can I fix the Promat Masterboard® directly to timber joists for a Swimming Pool?
No. Masterboard® is not suitable to be fixed directly to the underside of the existing timber joists as the timber would potentially expand or shrink with the changing humidity around a swimming pool environment. There is a risk that the joints of the finished system may crack.